Large ultrafast nonlinear optical response and excellent optical limiting behaviour in pyrene-conjugated zinc(II) phthalocyanines at a near-infrared wavelength

Husain, Ali; Ganesan, Asaithampi; Sebastian, Mathew; Makhseed, Saad

doi:10.1016/j.dyepig.2020.108787

Cited by 21 publications

(11 citation statements)

References 44 publications

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“…As shown in Figure 7 b, PyDN also exhibits an excellent OL performance with the picosecond pulse, and the threshold is estimated to be 133 mJ/cm 2 . The ultrafast optical–control performance of PyDN under femtosecond and picosecond laser pulses is comparable, or better than, previously reported graphene oxides [ 39 ], semiconductors [ 40 ], pyrene-based molecules [ 41 ], and hydrazone derivatives [ 15 ], indicating that twistacene derivatives are excellent candidates for ultrafast OL applications.…”

Section: Resultssupporting

confidence: 62%

Synthesis and Ultrafast Broadband Optical Limiting Properties of a Two-Branched Twistacene

Han

Xiao

et al. 2022

Molecules

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A novel two-branched twistacene (PyDN) has been designed and synthesized for application on ultrafast optical limiting. This twistacene exhibits excellent two photon absorption and two photon absorption-induced excited singlet state absorption, which was systematically investigated with a femtosecond Z-scan experiment, transient absorption spectrum, and two-photon excited fluorescence experiments. The admirable two photon absorption is attributed to the high degree of π electron delocalization in twistacene which is caused by introduction of two strong donors. The excited singlet state absorption cooperates with two-photon absorption to provide an excellent ultrafast optical limiting behavior with high linear transmittance, where the thresholds are 2.3–5.3 mJ/cm2 in the spectral region of 532–800 nm of femtosecond laser and 133 mJ/cm2 for picosecond pulse at 532 nm. These thresholds are lower than that of most of the optical limiters reported previously, which indicates PyDN is a promising candidate for ultrafast optical limiting.

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Section: Resultssupporting

confidence: 62%

Synthesis and Ultrafast Broadband Optical Limiting Properties of a Two-Branched Twistacene

Han

Xiao

et al. 2022

Molecules

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“…Two-photon absorption coefficients of ∼10 −13 cm/W were reported for phthalocyanine porphyrin conjugates metalated with nickel by Xiao et al, 2016. Interestingly, n 2 values with magnitudes of 10 −16 cm 2 /W were reported recently for pyrene-conjugated azaphthalocyanines (Sebastian et al, 2020) and pyrene-conjugated Zinc(II)phthalocyanines (Husain et al, 2021), respectively. However, they observed strong three-photon absorption in the open aperture data.…”

Section: Nonlinear Optical Measurementsmentioning

confidence: 80%

Optical, Electrochemical, Third-Order Nonlinear Optical Investigations of 3,4,5-Trimethoxy Phenyl Substituted Non-Aqueous Phthalocyanines

et al. 2021

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A new series of non-aqueous phthalocyanines having 3,4,5-trimethoxy phenyl group at peripheral positions in which the central cavity possessing Cu(II), Zn(II), and without metals has been synthesized, and its absorption, fluorescence (steady-state and excited state lifetimes), electrochemical, and third-order nonlinear optical (NLO) properties were evaluated. Absorption studies data suggest that all three phthalocyanines obey Beer–Lambert’s law, and the redox properties indicate that both oxidation and reduction reactions are macrocyclic centered. The singlet quantum yields were measured in different solvents and were found to be in the range of 0.2–0.5 in the case of free-base, whereas it was in the range of 0.1–0.5 in zinc derivative, while the time-resolved fluorescence data revealed lifetimes of typically a few ns. The third-order NLO properties were investigated using the Z-scan technique with kilohertz (for retrieving true electronic nonlinearities) and megahertz repetition rate femtosecond pulses at 800 nm. Intensity-dependent Z-scan studies revealed robust NLO coefficients for solutions and thin films (two-photon absorption cross-sections of 9,300–57,000 GM) of these molecules suggesting a strong potential for optical switching, imaging, and optical limiting applications.

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“…Besides novel corroles, researchers have thoroughly investigated the significant NLO behavior of various other organic molecules. Husain et al 56 aimed to establish a new type of nonlinear photonic material, the zinc( ii ) phthalocyanine macrocycle ( Pc-pyrene ), due to its potential application in optical limiters. In-depth NLO studies were carried out using the Z -scan technique, revealing its n 2 value of 10 −16 cm 2 W −1 .…”

Section: Resultsmentioning

confidence: 99%

Novel phosphorus(v) tetrabenzotriazacorroles: synthesis, characterization, optical, electrochemical, and femtosecond nonlinear optical studies

et al. 2022

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Large ultrafast nonlinear optical response and excellent optical limiting behaviour in pyrene-conjugated zinc(II) phthalocyanines at a near-infrared wavelength

Cited by 21 publications

References 44 publications

Synthesis and Ultrafast Broadband Optical Limiting Properties of a Two-Branched Twistacene

Synthesis and Ultrafast Broadband Optical Limiting Properties of a Two-Branched Twistacene

Optical, Electrochemical, Third-Order Nonlinear Optical Investigations of 3,4,5-Trimethoxy Phenyl Substituted Non-Aqueous Phthalocyanines

Novel phosphorus(v) tetrabenzotriazacorroles: synthesis, characterization, optical, electrochemical, and femtosecond nonlinear optical studies

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